Sewer cleaner



P. A. FUCHS SEWER CLEANER Oct. 12 1926. 1,602,405

Filed April 21, 1926 I u h 0% INVENTOR.

Patented Oct. 12, 19253, I

PHIILIP A. evens, or MILWAUK Wiscons n, lasers-nor; 'TO rename sswna MACHINE COMPANY, or MILWAUKEE, Wisconsin.

snwna mama's.

Aspiration an Ass; 21, 1922;. Serial its. man's.

" of answer, the power water being also utiliz'ed to carry away the debris. I p I The object of this iii'viiti'oni's to provide means for more efieetively utilizing the force or the power water to clean the blades and carry away the debris after the water ha'sbea delivered from the rotor of the turbine I v Also, to providean improved thrust bearing which will beless exposed to the actionof sand or urus-i1 the thrust bearing d i's- ClOd ill Said fol flier patent.

In saidfo'rin'e'r pate'at,t11e water was de'-' livredl from the rotor of the turbine against abll shaped f'ne'ck piece of the a) wry blade carrying h'ea'ci, said neck piece s'er'vi'nga's spreader to direct the water outwardly in the direction of the blades and against the interior surface of the water in the sewer. By this invention, a neck piece or spreader of the genera]. contour disclosed in said former patent is provided with series of helical channels which form continuations of the bucket grooves of the rotor, whereby the water may be delivered to the blades and the sewer walls in the form of concentrated jet-s which are found to be much more eil'ective for cleaning the blades and carrying away material than the conical sheet or spray delivered by the spreader disclosed in said former patent.

In the drawings:

Figure 1 is a side elevation of the improved sewer cleaner, with the supporting runners omitted.

Figure 2 is an enlarged detail view, partly in longitudinal section, showing the relatively stationary and rotary grooved members of the turbine in assembled relation to the head.

Like parts are identified by the same reference characters throughout the several views.

The cylinder 1 is provided with a hose coupling 2 at its rear end and its forward end is provided with a member 4, the interior surface of which is flared or conically enlarged as shown at 5. A water actuated motor is mounted in the: cylinder lnear the flaredend thereof and this includes estati'onary member 6 which may be secured to thewallot the cylinder but which is pro-- vfided with helical] water directing grooves 7. A shaft 10 extends through the member 6, or is formed integrally therewith, and an imp-act lflOtQl' Ol turbin rotor is mounted onthis shaft ith antrfricti-onthriist bearings 12 between it and a col1'ar, 13 flied to the shaft 10 and held in position by a nut 14' screwedupon a threaded portion (a said shaft 10. Similar thrust bearings 12 are interposed between the rotor and thereatively st'ationfary meiriber 6 -The front end of the shaft 10 is provided with an eyepiece 15 tojiiacilitat'e the-attachment of a' cable whereby the device in ay be drawn through a sewer. This eyepiece is pre i'erably screwed upon the shaft 10 and secure d'thereto by a coder pin 15 I l The rotor comprises a bucket grooved member 1 6 and lid l? connected to the member 16 by neck piece 18 having a geneia'lly' conical or hell shaped form, enlarged in the direction of the head. The member 16 is provided with a series of helical grooves 19 curving in the opposite direction from that of the grooves and these grooves 19 extend into the neck piece beyond the flar ing portion or end piece 1 of the casing as shown at 19. The portions 19'" of the groove constitute continuations of the buckets 19 and they are progressively shallower V as they approach the headpiece, whereby the water following these grooves is delivered outwardly in the direction 0]": the blades 20 and their shanks 21 which are secured to the headpiece 17. The blades operate to cut material from the sewer wall, as described in said former patent. The extension of the grooves 19 along the neck piece tends to confine the water to the grooves while it is being deflected outwardly and therefore the water is delivered to the blades in the form of separate jets, one for each groove. This avoids dissipatingthe force of the stream,

or streams, by reason of air resistance andthe spreading of the water into a conical sheet, as is the case in the structure disclosed in said former patent. These forcible jets of water are much more effective to carry away the fragments of material instead of In said former structure, the forward.

thrust bearings 12 were exposed to sand and grit. In the improved construction the shaft collar 13 is provided with a cylindrical portion 13 which encircles the bearings and is preferably provided with an inturned flange 13 which extends into close proximity with the hub upon the end of which the cone 26 is formed, thereby retaining the bearing balls 27.

In all other particulars the structure of the improved sewer cleaner may be assumed to correspond with that disclosed in said former patent and further description thereof is deemed unnecessary I claim 2- 1. In a sewer cleaner, the combination with a rotary blade carrying head, of a driving turbine having curved bucket cavities, and a spreader connecting the turbine with the head and having grooves which are continuations of the bucket cavities along an outwardly curving surface, said spreader grooves being adapted to direct the power water in the direction of the blades carried by the head. I

2. In a sewer cleaner, the combination with a head having radial blades, of a water motor operatively connected to drive the head, and a grooved spreader interposed between the turbine and the head and provided with grooves having progressively out curving walls, adapted to direct jets of power water from the turbine toward the blades.

3. In a sewer cleaner, the combination with a head having radial blades, of a water motor operatively connected to drive the head, and a grooved spreader interposed between the turbine and the head and provided with grooves having progressively curving walls, adapted to direct jets of power water from the turbine toward the blades said spreader grooves decreasing in depth in the direction of the head.

a. In a device of the character described,

the combination with a shaft and a head ro-.

tatably connected therewith, a water motor mounted on said shaft and operatively arranged to drive said head and to deliver its output in the direction of said head, said head including a tapered portion in the path of delivery of water from said motor, and provided with grooves extending in the direction of its outer periphery, whereby to discharge such water from individual grooves in the form of jets.

5. Ina turbine sewer cleaner, a rotor including a bucket grooved turbine at one end. an exposed head at the other end provided with cutting blades, and an intermediate portion provided with jet directing helical channels, the bottom walls of which also curve outwardly from the axis of the rotor.

PHILIP A. FUCHS.

out 

